International Organization for Standardization (ISO)
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ISO 4512:2000
Scope
This International Standard specifies the requirements for the equipment required to measure manually the liquid level or the corresponding volume of petroleum and petroleum products stored in tanks and containers.
ISO 4512:2000 Referenced Document
IEC 60079-11:1991 "Electrical Apparatus for Explosive Gas Atmospheres Part 11: Intrinsic Safety ""i"" (Edition 3.0)"
ISO 4512:2000 history
2000ISO 4512:2000 Petroleum and liquid petroleum products - Equipment for measurement of liquid levels in storage tanks - Manual methods